$2 \tan ^{-1}\left(\frac{1}{3}\right)+\tan ^{-1}\left(\frac{1}{7}\right)$ का मान ज्ञात कीजिए।

  • A
    $\tan ^{-1}\left(\frac{49}{29}\right)$
  • B
    $\frac{\pi}{2}$
  • C
    $0$
  • D
    $\frac{\pi}{4}$

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Similar Questions

यदि $\tan^{-1} \frac{1}{1+1(2)} + \tan^{-1} \frac{1}{1+2(3)} + \tan^{-1} \frac{1}{1+3(4)} + \dots + \tan^{-1} \frac{1}{1+n(n+1)} = \tan^{-1} \theta$ है,तो $\theta$ =

यदि $2\tan^{-1}(\cos x) = \tan^{-1}(2\csc x)$ है,तो $x =$

$\operatorname{Tan}^{-1} \frac{3}{5} + \operatorname{Tan}^{-1} \frac{6}{41} + \operatorname{Tan}^{-1} \frac{9}{191} = $

$\frac{1}{2}{\cos ^{ - 1}}\left( {\frac{{1 - x}}{{1 + x}}} \right) = $

यदि $0 \leq x \leq \frac{1}{2}$ है,तो $\tan \left[\sin ^{-1}\left\{\frac{x}{\sqrt{2}}+\frac{\sqrt{1-x^{2}}}{\sqrt{2}}\right\}-\sin ^{-1} x\right]$ का मान ज्ञात कीजिए।

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